Overview
Custer Yellowstone County Sewer District is a secondary treatment plant serving 150 people in Custer, Montana. It discharges treated wastewater into the local watershed, supporting the Yellowstone River basin.
The Custer Yellowstone County Sewer District is a municipal wastewater treatment plant located near I-94 in Custer, Yellowstone County, Montana. It serves a small population of 150 residents, reflecting the rural character of the area. The plant is part of the region's infrastructure for managing domestic wastewater. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 98.42 units and a discharge volume of 105.99 units, it operates under the U.S. Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for such facilities. These permits set effluent limits to protect water quality. The treated effluent is discharged into the local watershed, which drains into the Yellowstone River, a major tributary of the Missouri River. The Yellowstone River supports diverse aquatic life and is an important ecological corridor in the Northern Great Plains. The plant's operations help maintain water quality in this sensitive river system.
Environmental context
The plant discharges into the local watershed that feeds the Yellowstone River, which flows north and east to join the Missouri River near the North Dakota border. The Yellowstone River basin supports a variety of fish species, including cold-water trout, and provides habitat for migratory birds. The region's semi-arid climate makes water quality management critical for sustaining both ecological health and agricultural uses downstream.
Frequently asked questions
The plant is located near Interstate 94 in Custer, Yellowstone County, Montana, United States.
The plant serves a small population of approximately 150 residents in the Custer area.
The plant discharges treated effluent into the local watershed, which drains into the Yellowstone River, a major tributary of the Missouri River.
The plant operates under the U.S. Clean Water Act, requiring an NPDES permit issued by the Montana Department of Environmental Quality to regulate discharges and protect water quality.
Small plants like this one typically provide secondary treatment, which uses biological processes to remove organic pollutants and suspended solids, meeting federal standards under the Clean Water Act.
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